问题
解答题
|
答案
(1)
+2 3
+1 2 3 8
=
+16 24
+12 24 9 24
=
;37 24
(2)8-
-7 14 5 13
=
-1456 182
-91 182 70 182
=
;1295 182
(3)1-
-1 5
+4 5 4 7
=1-(
+1 5
)+4 5 4 7
=1-1+4 7
=
;4 7
(4)
-(7 8
+1 4
)1 5
=
-7 8 9 20
=
;17 40
(5)
-(4 5
-4 5
)2 3
=
-4 5
+4 5 2 3
=
;2 3
(6)
-9 11
+2 5
+2 5 5 11
=(
+9 11
)-(5 11
-2 5
)2 5
=
.14 11